Phonon anomaly of under-doped YBa2Cu3O6.6 studied by neutron scattering

被引：0
|
作者：
Nishijima, T
Arai, M
Yamaya, K
Okajima, Y
Hannon, AC
Otomo, T
机构：
[1] KOBE UNIV, FAC SCI, DEPT PHYS, NADA KU, KOBE 657, JAPAN
[2] RES DEV CORP JAPAN, HONCHO 332, JAPAN
[3] HOKKAIDO UNIV, DEPT APPL PHYS, SAPPORO, HOKKAIDO 060, JAPAN
[4] RUTHERFORD APPLETON LAB, DIDCOT OX11 0QX, OXON, ENGLAND
[5] NATL LAB HIGH ENERGY PHYS, TSUKUBA, IBARAKI 305, JAPAN
来源：
PHYSICA B-CONDENSED MATTER | 1996年 / 219-20卷 / 1-4期
关键词：
D O I：
10.1016/0921-4526(95)00696-6
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Total Pair Correlation Function (T(r)). and phonon density of states (PDOS) were measured by neutron scattering on the powder sample of YBa2Cu3O6.6 (T-c similar to 60 K) at temperatures between 20 and 295 K. Lattice anomalies were observed in the T(r) and PDOS much above T-c as well as T-c. These results indicate that the anomaly at T-c can be related to the superconducting transition but one above T-c may be attributed to the induced lattice anomaly caused by the pseudo-spin-gap opening.
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页码：204 / 206
页数：3
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